Grub

root vs real_root - A real_root használja az initramfs-t az eszközök inicializálásához

title Gentoo Linux root (hd0,1) kernel /boot/kernel-genkernel-x86-2.6.24-gentoo-r5 root=/dev/ram0 init=/linuxrc ramdisk=8192 real_root=/dev/mapper/nvidia_abiccada4 dodmraid video=vesafb:ywrap,pmipal,1280x1024-16@60 initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5

Indítás kézzel

http://askubuntu.com/questions/197833/recovering-from-grub-rescue-crash

ls (hdX,Y) #replace X,Y with the right numbers, eg (hd0,3) for 3rd partition, 1st drive or (hd1,5) for 2nd drive, fifth partition set prefix=(hdX,Y)/boot/grub set root=(hdX,Y) set ls /boot insmod linux linux /vmlinuz root=/dev/sdXY ro #use the usual linux way of referring to partitions: sda1 would 1st drive, first partition; sda3: 1st drive, 3rd partition; sdb5: 2nd drive, 5th partition initrd /initrd.img boot

Grub2

Csak konzolos grub config:

# If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=3 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="text" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1"